I know not - A cool way of saying you're totally getting what the other p

A cool way of saying you're totally getting what the other person is saying. Usually said by a kid who thinks they're the best at school.

"I KNOW NOT THAT YOU SAID THAT!" (said by a kid who was trying to sound cool in class.)

"I KNOW NOT THAT YOU MEAN WHAT YOU SAY!" (said by a kid who was trying to sound smart.)

"I KNOW NOT THAT YOU’RE TRYING TO CONFUSE ME!" (said by a kid who thought they were the smartest in the class.)